Electric radiator



Jan. 13, 1931. J. E. GANNON 1,788,515

ELECTRIC RADIATOR v Filed Deo. 8, 1927 4 7K2: (1f/ff A TTORNEYS.

Patented Jan. 13,l 1931 UNITED STATI-:s PATENT or-'Flcs TAKES E. GANNON, OF ERIE, PENNSYLVANIA, ASSIGNOBITO AnBICA-ll' ELECTRIC lHEATING CORP-ANY, Ol' ERIE, PENNSYLVANIA, A CORPORATION OF Pmm i VANIA a ELECTRIC RADIATOR Application lled December 8, 1927. Serial lo. 288,584.

It is desirable with electric radiators to provide the working unit so that it may be readily detached from the case and a new unit ut in place for the purpose of repair or adl ustment. In this way the radiator maybe ept in operation except for the few moments needed in making the exchange. One of the purposes of the present invention is to provide such a unit. The invention further provides for the arrangement of a humidor in the case, which humidor services also as a reservoir for the expansion system of the radiator. Another feature of the invention is the application of the room thermostat directly to the radiator unit so that it, as well as the other elements of the structure, can be insulated without further `connection than the connection of the supply wires tothe radiator as a whole. Other features and details of the invention will appear more fully from the specification and claims.

- A preferred embodiment of the invention is illustrated in the accompanying drawings as follows Fig. 1 shows a pers ective view of the radiator, a part being roken away to better show construction.

Fig. 2 a diagram of the wiring controls of the radiator. Fig. 3 a section on the line 3-3 in Fig. 1.

Fig. 4 a section on the line 4 4 in Fig. 3.

l and 2 are the tubular water containers. These extend horizontally across the radiator and are connected by vertical manifolds 3 and 4. The containers are mounted in a frame having the ends 5 and 6 and this frame rests on flanges 7 arranged within front and rear walls 8 and 9 of the outside case. This case is formed with the frontand rear walls, the end walls 10 and the corner posts, or legs 11 which support the radiator, this being secured to the front and rear walls at the corners. A top 12 is provided for the entire case, the top having the flanged ed es so as to make an attractive cover. The ront wall 8 of the case is provided with a series of openings 13 through which the air is discharged from thev open at the top and bottom. They are inA heattransfer relation, as clearly shown in Fig. 3 withthe containers 1 and 2, the plates having spring openings 15 to assure a contact. The

. element 17 extends into the receptacle and is responsive to the heat of the liquid of the re ceptacle for a thermal control of that liquid. A thermal element 17a isarranged under the plates and in the path of the incoming air, this thermal element controlling the current in response to dilferences in room temperature', the incoming air practically insulating this'element from the radiator.

Line wires 18 and 19 lead into the radiator through an insulated opening 9a in the back. These line wires extend to contact posts 20 and 21 from which are arranged the switch contacts 20a and 21a. A double-plate `switch 22 and 23 has plates connected by a bar 24 which bar is connected with a solenoid core, or movable element 25. The plates -22 and 23 extend from contacts 26 and 27. Wires 28 and 29 extend from the contacts 26 and 27 to the electric heating element 17 b, this element extending into the lower tubular container and in position to heat the liquid in said container. It is removable from the case with the frame. The wiring for accomplishing the automatic control of the radiator is as follows A wire 30 extends from the post 21 to a post 31 on the room thermostat. A movable element 32 responsive to the temperature of the element 17a vibrates between posts 33 and 34. A wire 35 extends from the post 33 to a sole# noid coil 36 operating on the movable element 25. A wire 37 extends from the coil 36 to a switch contact 38 in the path of the switch plate 22. It will be seen, therefore, that when the room thermostat reaches the hot post 33 that the circuit is closed through the solenoid coil 36 and this operating upon the movable element 25 throws the switch to the left, thus opening the circuit to the heat unit.

A wire 39 extends from the cold post 34 .of

the room thermostat to a post 40 on the safet water thermostat.- A movable element 41 1s connected with the post 40 and is responsive to variations in temperature as communicated through the element 17. The normal position of the movable element 41 is in contact with the post 42 and only moves to the post 43 When the temperature rises above a safe temperature. When the movable element 32 reaches the cold post 34 with the water temperature at normal a circuit is established by way of the wire 39, post 40, thermostatic element 41, post 42, wire 44, coil 45, Wire 46, contact 47, auxiliary switch plate 48, contact 50 and post 20, the switch'plate 48 being closed on the contact 50, only the bar 24 moves to open the switch plates 22 and 23, the link 49 connecting the auxiliary switch plate 48 with the bar 24, and with the closing of the main switch the heat unit operates in the ordinary manner creating the heat until the room temperature is varied.

Should the water become over-heated, the element 41 swinging across to thepost 43, it will open the switch 22-23 should it at that moment be closed through the contact of the element 32 with the post 34. This is accomplished by current from the contact 32 by way of the post 40, element 4l, post 43, Wire 51 and the wire 35 to the coil 36 and then to the contact 38 which has been closed with the closing of the switch 22-23, the circuit being closed from the post 31 by the wire 30 with the post 21.

I prefer to rovide a shallow liumiclor 52 in the form o? a receptacle forming the top of the frame and secured to the sides 5v and 6 of the frame. An expansion pipe 53 extends from the manifold 3' into the bottom of the humidor 52. Using the humidor in this manner gives a large capacity for expansion from the heating element. In order that there may be no trapping of air due to a tilted setting of the radiator I provide a vent tube 54 from the manifold 4 extending upwardly above the humidor.

It will be noted that the frame with all the Working parts may be lifted directly from the case and thus it is possible in servicing these devices to substitute one frame with the Working units for another. While I have shown the frame as one removable through the top of the case I do not Wish to be limited to a construction in which the removal is accomplished through the top.

VWhat I claim as new is 1. In an electric radiator, the combination of a case; a tubular Water container in the case; an electric heater in the container; vertically extending radiating plates arranged in heat transfer relation with the container, said plates bein spaced along the container with passages tcherebetween open from top to bottom.

2. In an electric radiator, the combination of a case having front openings in the case; a removable frame in the case; a water container arranged in the frame; an electric heat unit in the Water container; and a defiector arranged over the container, said deilector being carried by the frame and deflecting the discharge through the openin 3. In an electric radiator, the combination oi a case; a removable frame in the case; a Water container mounted in the frame; an electric heating unit in the Water container; and control elements for the electric heating unit carried by the frame and removable with the trame.

4. In an electric radiator, the combination of a case; a removable frame in the case; a Water container mounted in the frame; an electrical heating unit in the Water container;

' and control elements for the electric heating unit carried by the frame and removable with the frame, comprising a thermal control member responsive to room temperature, said member having its sensitive element in the path of the incoming current leading to the radiator.

5. In an electric radiator, the combination of a case; a removable frame in the case; a Water container mounted in the frame; an electric heating unit in the Water container; control elements for the electric heating unit carried by the frame and removable with the frame, comprising a thermal control member responsive to room temperature, said member having its sensitive element in the path of the incon'iing current leading to the radiator; and a thermal element sensitive to water temperature in series with the room thermostat.

6. In an electric radiator, the combination of a case having front openings in the case; a removable frame in the case; an electric heating member carried by the member; and a delector arranged over the member, said deflector being 4carried by the frame and delecting the discharge toward the opening.

7. In an electric radiator, the combination of a case; a removable frame in the case; an electric heating member; and control elements for the electric heating unit carried by the frame and removable with the frame.

8. In an electric radiator, the combination of a case; a removable frame in the case; an electric heating member; and control elements for the electric heating member carried by the frame and removable with the frame comprising a thermal control member responsive to room temperature, said control member having its sensitive element in the path of the incoming current leading to the radiator.

9. In an electric radiator, the combination of a case; a removable frame in the case; an electric heating member; control elements for the electric heating member carried by the frame and removable with the frame comprising a thermal control member responmesmav sive to room temperature, said control member having its sensitive element in the path of the incoming current leading to the radiator; and a thermal element sensitive to the electric heating member in series with the room thermostat.

In testimony whereof I have hereunto set my hand.

JAMES E. GANNON. 

